docs: def download_seq_file(self, outdir, force_rerun=False):
          """Download and load the UniProt FASTA file"""
  
          uniprot_fasta_file = download_uniprot_file(uniprot_id=self.id,
                                                     filetype='fasta',
                                                     outdir=outdir,
                                                     force_rerun=force_rerun)
  
          self.sequence_path = uniprot_fasta_file